[asterisk-speech-rec] Tags don't seem to work

[Daniel Floyd]

I'm doing some experiments with the LV speech engine and Asterisk 1.2 and am
having problems with tags.  Specifically, I'm using the yesno.gram from the
pizza demo and if I read the grammar right, regardless of whether "yes",
"yes please", "yep", "yeah", "sure", or "correct" is said, "yes" should be
returned by the SPEECH_TEXT() function (or at the very least "correct"
should return "yes" -- it wasn't clear to me from the docs and other
examples if the tag held for the entire rule or just "correct" and since I
can't get tags to work at all, I couldn't test it to find out).  At any
rate, I always get back what was said, not the tag.  So if I say "correct",
SPEECH_TEXT(0) returns "correct", not "yes".  I thought the point was that
"yes" would be returned.  This happens in both my dialplan and with the
pizza demo.

I've looked through apps/app_speech_utils.c and res/res_speech.c, but
neither are very telling since they are both generic.  So I'm guessing the
interesting stuff is in res_speech_lumenvox.so which of course source is not
available for.  After looking at the Lumenvox API docs, I'm going to venture
a guess (assuming it isn't me) that maybe res_speech_lumenvox.so is only
returning the "terminal" nodes from the parse tree and not the "tag" nodes.
If that's the case, is there a way or plans to change this?  Seems like a
lot of the functionality is lost without tags.  

Here is yesno.gram I am using.  And once again, this is straight out of the
pizza demo.  I'm also using the lumenvox.conf file from the pizza demo
except with an additional grammar file I added for my own dialplan I'm
working on.

---------
#ABNF 1.0;
mode voice;
language en-US;
tag-format <lumenvox/1.0>;

root $yesorno;
$yes = yes $GARBAGE|yep|yeah|sure|correct:"yes";
$no = no $GARBAGE|nope:"no";
$yesorno = $yes|$no {$=$$};
---------

Thanks,
Daniel